With interest rates so low, the next banking war could be over bitcoin.

Bitcoin startup Xapo slashed prices on one of its account offerings Thursday in an effort to drive customers amid rising interest in the cyber currency.

Xapo also launched a slew of new security features following concern over the latest bitcoin breach.

"Security is keeping a lot of users uncomfortable using bitcoin and we understand that," Xapo founder and CEO Wences Casares told USA TODAY.

Xapo, which launched last March, said on Wednesday that its Vault product, which acts like a savings account for bitcoin, will now be free of charge. Xapo also added a slew of new security features to Vault, including a multi-signature authorization process.

According to Casares, users will now need three keys to open their vaults, up from one previously. As before, the keys are held offline to ensure security.

To get the keys, thieves "would need to physically break into three different bankers vaults," including one in "the mountains in Switzerland," Casares said.

Bitcoin security made made headlines again this month when BitStamp, the world's third-largest bitcoin exchange, said some 19,000 bitcoins, worth about $5.4 million, had been lost to a security breach. The company reopened for business within a week, promising tighter security and guaranteeing losses — but not before the company was made fun of on The Tonight Show Starring Jimmy Fallon.

Bitcoin fans have been skittish since the world's largest bitcoin exchange, Mt. Gox, collapsed last year. The Japan-based exchange has since been accused of mishandling customers' accounts, leading to investigations in both Japan and the U.S.

Mt. Gox's collapse followed massive declines in the price of bitcoin — which lost a whopping 58% last year. But user adoption is growing, Casares argued.

Indeed, bitcoin tracker Coindesk recently reported that the total number of bitcoin transactions in late 2014 nearly doubled from the previous year. Driving adoption has been a growing number of established companies OKing the cyber currency, including Microsoft and payments company PayPal.

Casares said he sees interest in bitcoin growing even more in 2015.

"This is an industry in its infancy, much as the Internet was before there was a browser," he said.